Structure and method to fabricate MOSFET with short gate
    81.
    发明授权
    Structure and method to fabricate MOSFET with short gate 有权
    用短栅制造MOSFET的结构和方法

    公开(公告)号:US07943467B2

    公开(公告)日:2011-05-17

    申请号:US12016317

    申请日:2008-01-18

    Abstract: A method of producing a semiconducting device is provided that in one embodiment includes providing a semiconducting device including a gate structure atop a substrate, the gate structure including a dual gate conductor including an upper gate conductor and a lower gate conductor, wherein at least the lower gate conductor includes a silicon containing material; removing the upper gate conductor selective to the lower gate conductor; depositing a metal on at least the lower gate conductor; and producing a silicide from the metal and the lower gate conductor. In another embodiment, the inventive method includes a metal as the lower gate conductor.

    Abstract translation: 提供了一种制造半导体器件的方法,其在一个实施例中包括提供包括在衬底顶部的栅极结构的半导体器件,所述栅极结构包括包括上栅极导体和下栅极导体的双栅极导体,其中至少下部 栅极导体包括含硅材料; 去除对下栅极导体选择性的上栅极导体; 在至少所述下栅极导体上沉积金属; 并从金属和下部栅极导体产生硅化物。 在另一个实施例中,本发明的方法包括作为下栅极导体的金属。

    Lithography for printing constant line width features

    公开(公告)号:US07863169B2

    公开(公告)日:2011-01-04

    申请号:US11947929

    申请日:2007-11-30

    Applicant: Huilong Zhu

    Inventor: Huilong Zhu

    Abstract: An anisotropic wet etch of a semiconductor layer generates facets joined by a ridge running along the center of a pattern in a dielectric hardmask layer on the semiconductor layer. The dielectric hardmask layer is removed and a conformal masking material layer is deposited. Angled ion implantation of Ge, B, Ga, In, As, P, Sb, or inert atoms is performed parallel to each of the two facets joined by the ridge causing damage to implanted portions of the masking material layer, which are removed selective to undamaged portions of the masking material layer along the ridge and having a constant width. The semiconductor layer and a dielectric oxide layer underneath are etched selective to the remaining portions of the dielectric nitride. Employing remaining portions of the dielectric oxide layer as an etch mask, the gate conductor layer is patterned to form gate conductor lines having a constant width.

    Structure and method for manufacturing trench capacitance
    83.
    发明授权
    Structure and method for manufacturing trench capacitance 有权
    用于制造沟槽电容的结构和方法

    公开(公告)号:US07858485B2

    公开(公告)日:2010-12-28

    申请号:US12191430

    申请日:2008-08-14

    CPC classification number: H01L29/66181 H01L27/10861

    Abstract: A deep trench (DT) capacitor comprises a trench in a silicon layer, a buried plate surrounding the trench, a dielectric layer lining the trench, and a node conductor in the trench. The top surface of the poly node is higher than the surface of the silicon layer, so that it is high enough to ensure that a nitride liner used as a CMP etch stop for STI oxide surrounding a top portion of the poly node will be higher than the STI oxide, so that the nitride liner can be removed prior to forming a silicide contact on top of the poly node.

    Abstract translation: 深沟槽(DT)电容器包括硅层中的沟槽,围绕沟槽的掩埋板,衬套沟槽的电介质层和沟槽中的节点导体。 多晶硅节点的顶表面高于硅层的表面,使得其足够高以确保用作CMP蚀刻的氮化物衬垫停止用于围绕多晶硅节点的顶部的STI氧化物将高于 STI氧化物,使得氮化物衬垫可以在在多晶硅节点的顶部形成硅化物接触之前被去除。

    Channel stress engineering using localized ion implantation induced gate electrode volumetric change
    85.
    发明授权
    Channel stress engineering using localized ion implantation induced gate electrode volumetric change 失效
    通道应力工程采用局部离子注入诱导栅电极体积变化

    公开(公告)号:US07791112B2

    公开(公告)日:2010-09-07

    申请号:US11867264

    申请日:2007-10-04

    Abstract: A method for fabricating a semiconductor structure uses a volumetric change ion implanted into a volumetric change portion of a gate electrode that is located over a channel region within a semiconductor substrate to form a volume changed portion of the gate electrode located over the channel region within the semiconductor substrate. The volume changed portion of the gate electrode is typically bidirectionally symmetrically graded in a vertical direction. The volume-changed portion of the gate electrode has a first stress that induces a second stress different than the first stress into the channel region of the semiconductor substrate.

    Abstract translation: 制造半导体结构的方法使用注入到位于半导体衬底内的沟道区域上的栅电极的体积变化部分中的体积变化离子,以形成位于该半导体衬底内的沟道区域上方的栅电极的体积变化部分 半导体衬底。 栅电极的体积变化部分通常在垂直方向上双向对称地分级。 栅电极的体积变化部分具有在半导体衬底的沟道区域中产生不同于第一应力的第二应力的第一应力。

    Hybrid SOI/bulk semiconductor transistors
    87.
    发明授权
    Hybrid SOI/bulk semiconductor transistors 失效
    混合SOI /体半导体晶体管

    公开(公告)号:US07767503B2

    公开(公告)日:2010-08-03

    申请号:US12132853

    申请日:2008-06-04

    Abstract: Channel depth in a field effect transistor is limited by an intra-layer structure including a discontinuous film or layer formed within a layer or substrate of semiconductor material. Channel depth can thus be controlled much in the manner of SOI or UT-SOI technology but with less expensive substrates and greater flexibility of channel depth control while avoiding floating body effects characteristic of SOI technology. The profile or cross-sectional shape of the discontinuous film may be controlled to an ogee or staircase shape to improve short channel effects and reduce source/drain and extension resistance without increase of capacitance. Materials for the discontinuous film may also be chosen to impose stress on the transistor channel from within the substrate or layer and provide increased levels of such stress to increase carrier mobility. Carrier mobility may be increased in combination with other meritorious effects.

    Abstract translation: 场效应晶体管中的沟道深度由包括在半导体材料的层或衬底内形成的不连续膜或层的层内结构限制。 因此,可以以SOI或UT-SOI技术的方式控制通道深度,但是具有较便宜的衬底和更大的通道深度控制的灵活性,同时避免SOI技术的浮体效应特性。 不连续膜的轮廓或横截面形状可以被控制为奥格或阶梯形状,以改善短通道效应,并且在不增加电容的情况下降低源极/漏极和延伸电阻。 也可以选择用于不连续膜的材料以在衬底或层内从晶体管沟道施加应力,并提供增加的这种应力水平以增加载流子迁移率。 携带者的流动性可能会与其他有利的影响相结合。

    Self-aligned super stressed PFET
    88.
    发明授权
    Self-aligned super stressed PFET 有权
    自对准超应力PFET

    公开(公告)号:US07741658B2

    公开(公告)日:2010-06-22

    申请号:US11842437

    申请日:2007-08-21

    Abstract: The embodiments of the invention comprise a self-aligned super stressed p-type field effect transistor (PFET). More specifically, a field effect transistor comprises a channel region comprising N-doped material and a gate above the channel region. The field effect transistor also includes a source region on a first side of the channel region and a drain region on a second side of the channel region opposite the first side. The source and drain regions each comprise silicon germanium, wherein the silicon germanium has structural indicia of epitaxial growth.

    Abstract translation: 本发明的实施例包括自对准超应力p型场效应晶体管(PFET)。 更具体地,场效应晶体管包括包含N掺杂材料的沟道区和沟道区上方的栅。 场效应晶体管还包括在沟道区的第一侧上的源极区域和与第一侧相对的沟道区域的第二侧上的漏极区域。 源极和漏极区域各自包含硅锗,其中硅锗具有外延生长的结构标记。

    MOSFET with super-steep retrograded island
    89.
    发明授权
    MOSFET with super-steep retrograded island 失效
    具超级陡峭退火岛的MOSFET

    公开(公告)号:US07723750B2

    公开(公告)日:2010-05-25

    申请号:US11774221

    申请日:2007-07-06

    Abstract: The present invention comprises a method for forming a semiconducting device including the steps of providing a layered structure including a substrate, a low diffusivity layer of a first-conductivity dopant; and a channel layer; forming a gate stack atop a protected surface of the channel layer; etching the layered structure selective to the gate stack to expose a surface of the substrate, where a remaining portion of the low diffusivity layer provides a retrograded island substantially aligned to the gate stack having a first dopant concentration to reduce short-channel effects without increasing leakage; growing a Si-containing material atop the recessed surface of the substrate; and doping the Si-containing material with a second-conductivity dopant at a second dopant concentration. The low diffusivity layer may be Si1-x-yGexZy, where Z can be carbon (C), xenon (Xe), germanium (Ge), krypton (Kr), argon (Ar), nitrogen (N), or combinations thereof.

    Abstract translation: 本发明包括一种形成半导体器件的方法,包括以下步骤:提供包括衬底,第一导电掺杂剂的低扩散层的分层结构; 和通道层; 在沟道层的受保护表面上方形成栅极堆叠; 蚀刻对栅极堆叠选择性的层状结构以暴露衬底的表面,其中低扩散层的剩余部分提供基本上与具有第一掺杂剂浓度的栅极堆叠对准的退化岛,以减少短沟道效应而不增加泄漏 ; 在衬底的凹陷表面的顶部生长含Si材料; 并且以第二掺杂剂浓度用第二导电掺杂剂掺杂含Si材料。 低扩散性层可以是Si1-x-yGexZy,其中Z可以是碳(C),氙(Xe),锗(Ge),氪(Kr),氩(Ar),氮(N)或它们的组合。

    Method for reducing overlap capacitance in field effect transistors
    90.
    发明授权
    Method for reducing overlap capacitance in field effect transistors 失效
    降低场效应晶体管重叠电容的方法

    公开(公告)号:US07709333B2

    公开(公告)日:2010-05-04

    申请号:US12173098

    申请日:2008-07-15

    Abstract: A field effect transistor (FET) device includes a gate conductor formed over a semiconductor substrate, a source region having a source extension that overlaps and extends under the gate conductor, and a drain region having a drain extension that overlaps and extends under the gate conductor only at selected locations along the width of the gate conductor.

    Abstract translation: 场效应晶体管(FET)器件包括形成在半导体衬底上的栅极导体,具有在栅极导体下方重叠并延伸的源极延伸的源极区域以及具有与栅极导体下方重叠并延伸的漏极延伸的漏极区域 仅沿着栅极导体的宽度的选定位置。

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